> From: Philippe Verdy <[email protected]> > Date: Thu, 15 Nov 2012 08:34:25 +0100 > Cc: Eli Zaretskii <[email protected]>, Jeff Senn <[email protected]>, > Unicode Mailing List <[email protected]> > > In a WYSIWYG edited document, where the editing view can show BOTH the left > and right margin of the intended page (or where automatic linewraps are > generated, such as most HTML pages in a web browser that displays an > editable text field), and where no horizontal scrollbar is needed for the > editable field view, all lines of the paragraph are completely displayed, > the UBA algorithm is applied line by line, and the two carets are always on > the same rendered line. They can always be made BOTH visible at the same > time on that line, each one showinf its correct direction (with their arrow > head).
Some editors, such as Emacs, can enable and disable wrapping at user command. So the wrapped-line assumption might not hold, and does not hold in some specialized modes.

